247 lines
8.5 KiB
Java
247 lines
8.5 KiB
Java
/*
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* Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8005166
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* @summary Add support for static interface methods
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* Smoke test for static interface method hiding
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* @modules jdk.compiler
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* @run main/timeout=600 InterfaceMethodHidingTest
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*/
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import com.sun.source.util.JavacTask;
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import java.net.URI;
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import java.util.Arrays;
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import javax.tools.Diagnostic;
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import javax.tools.JavaCompiler;
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import javax.tools.JavaFileObject;
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import javax.tools.SimpleJavaFileObject;
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import javax.tools.StandardJavaFileManager;
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import javax.tools.ToolProvider;
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public class InterfaceMethodHidingTest {
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static int checkCount = 0;
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enum SignatureKind {
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VOID_INTEGER("void m(Integer s)", "return;"),
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STRING_INTEGER("String m(Integer s)", "return null;"),
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VOID_STRING("void m(String s)", "return;"),
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STRING_STRING("String m(String s)", "return null;");
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String sigStr;
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String retStr;
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SignatureKind(String sigStr, String retStr) {
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this.sigStr = sigStr;
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this.retStr = retStr;
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}
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boolean overrideEquivalentWith(SignatureKind s2) {
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switch (this) {
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case VOID_INTEGER:
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case STRING_INTEGER:
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return s2 == VOID_INTEGER || s2 == STRING_INTEGER;
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case VOID_STRING:
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case STRING_STRING:
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return s2 == VOID_STRING || s2 == STRING_STRING;
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default:
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throw new AssertionError("bad signature kind");
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}
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}
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}
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enum MethodKind {
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VIRTUAL("", "#M #S;"),
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STATIC("static", "#M #S { #BE; #R }"),
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DEFAULT("default", "#M #S { #BE; #R }");
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String modStr;
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String methTemplate;
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MethodKind(String modStr, String methTemplate) {
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this.modStr = modStr;
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this.methTemplate = methTemplate;
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}
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boolean inherithed() {
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return this != STATIC;
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}
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static boolean overrides(MethodKind mk1, SignatureKind sk1, MethodKind mk2, SignatureKind sk2) {
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return sk1 == sk2 &&
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mk2.inherithed() &&
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mk1 != STATIC;
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}
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String getBody(BodyExpr be, SignatureKind sk) {
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return methTemplate.replaceAll("#BE", be.bodyExprStr)
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.replaceAll("#R", sk.retStr)
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.replaceAll("#M", modStr)
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.replaceAll("#S", sk.sigStr);
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}
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}
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enum BodyExpr {
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NONE(""),
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THIS("Object o = this");
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String bodyExprStr;
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BodyExpr(String bodyExprStr) {
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this.bodyExprStr = bodyExprStr;
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}
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boolean allowed(MethodKind mk) {
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return this == NONE ||
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mk != MethodKind.STATIC;
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}
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}
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public static void main(String... args) throws Exception {
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//create default shared JavaCompiler - reused across multiple compilations
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JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
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try (StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null)) {
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for (MethodKind mk1 : MethodKind.values()) {
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for (SignatureKind sk1 : SignatureKind.values()) {
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for (BodyExpr be1 : BodyExpr.values()) {
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for (MethodKind mk2 : MethodKind.values()) {
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for (SignatureKind sk2 : SignatureKind.values()) {
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for (BodyExpr be2 : BodyExpr.values()) {
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for (MethodKind mk3 : MethodKind.values()) {
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for (SignatureKind sk3 : SignatureKind.values()) {
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for (BodyExpr be3 : BodyExpr.values()) {
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new InterfaceMethodHidingTest(mk1, mk2, mk3, sk1, sk2, sk3, be1, be2, be3).run(comp, fm);
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}
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}
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}
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}
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}
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}
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}
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}
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}
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System.out.println("Total check executed: " + checkCount);
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}
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}
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MethodKind mk1, mk2, mk3;
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SignatureKind sk1, sk2, sk3;
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BodyExpr be1, be2, be3;
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JavaSource source;
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DiagnosticChecker diagChecker;
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InterfaceMethodHidingTest(MethodKind mk1, MethodKind mk2, MethodKind mk3,
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SignatureKind sk1, SignatureKind sk2, SignatureKind sk3, BodyExpr be1, BodyExpr be2, BodyExpr be3) {
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this.mk1 = mk1;
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this.mk2 = mk2;
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this.mk3 = mk3;
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this.sk1 = sk1;
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this.sk2 = sk2;
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this.sk3 = sk3;
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this.be1 = be1;
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this.be2 = be2;
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this.be3 = be3;
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this.source = new JavaSource();
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this.diagChecker = new DiagnosticChecker();
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}
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class JavaSource extends SimpleJavaFileObject {
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String template = "interface Sup {\n" +
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" default void sup() { }\n" +
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"}\n" +
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"interface A extends Sup {\n" +
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" #M1\n" +
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"}\n" +
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"interface B extends A, Sup {\n" +
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" #M2\n" +
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"}\n" +
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"interface C extends B, Sup {\n" +
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" #M3\n" +
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"}\n";
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String source;
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public JavaSource() {
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super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
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source = template.replaceAll("#M1", mk1.getBody(be1, sk1))
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.replaceAll("#M2", mk2.getBody(be2, sk2))
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.replaceAll("#M3", mk3.getBody(be3, sk3));
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}
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@Override
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public CharSequence getCharContent(boolean ignoreEncodingErrors) {
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return source;
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}
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}
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void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {
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JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,
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Arrays.asList("-XDallowStaticInterfaceMethods"), null, Arrays.asList(source));
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try {
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ct.analyze();
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} catch (Throwable ex) {
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throw new AssertionError("Error thrown when analyzing the following source:\n" + source.getCharContent(true));
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}
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check();
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}
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void check() {
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boolean errorExpected =
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!be1.allowed(mk1) || !be2.allowed(mk2) || !be3.allowed(mk3);
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if (mk1.inherithed()) {
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errorExpected |=
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sk2.overrideEquivalentWith(sk1) && !MethodKind.overrides(mk2, sk2, mk1, sk1) ||
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sk3.overrideEquivalentWith(sk1) && !MethodKind.overrides(mk3, sk3, mk1, sk1);
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}
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if (mk2.inherithed()) {
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errorExpected |=
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sk3.overrideEquivalentWith(sk2) && !MethodKind.overrides(mk3, sk3, mk2, sk2);
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}
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checkCount++;
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if (diagChecker.errorFound != errorExpected) {
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throw new AssertionError("Problem when compiling source:\n" + source.getCharContent(true) +
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"\nfound error: " + diagChecker.errorFound);
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}
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}
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static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
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boolean errorFound;
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public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
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if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
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errorFound = true;
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}
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}
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}
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}
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